CN109433916A - A kind of automobile vertical plate upper mounting bracket continuous process and process equipment - Google Patents

A kind of automobile vertical plate upper mounting bracket continuous process and process equipment Download PDF

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Publication number
CN109433916A
CN109433916A CN201811539732.2A CN201811539732A CN109433916A CN 109433916 A CN109433916 A CN 109433916A CN 201811539732 A CN201811539732 A CN 201811539732A CN 109433916 A CN109433916 A CN 109433916A
Authority
CN
China
Prior art keywords
station
mold
continuous
stamping
mounting bracket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811539732.2A
Other languages
Chinese (zh)
Inventor
刘成强
林连华
徐海港
于兆申
齐文君
程方芹
高俊峰
于文忠
徐彩霞
刘昭旭
许琳琳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Shifeng Group Co Ltd
Original Assignee
Shandong Shifeng Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Shifeng Group Co Ltd filed Critical Shandong Shifeng Group Co Ltd
Priority to CN201811539732.2A priority Critical patent/CN109433916A/en
Publication of CN109433916A publication Critical patent/CN109433916A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/001Shaping combined with punching, e.g. stamping and perforating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/08Dies with different parts for several steps in a process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/88Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Abstract

The invention discloses a kind of automobile vertical plate upper mounting bracket continuous process and process equipments.A kind of automobile vertical plate upper mounting bracket continuous process, it is characterized in that: plate coiled strip first by open flat machine carry out out it is flat, the plate after putting down is opened to be smoothed by smoothing feeder, and the billot after smoothing is sent into stamping procedure and is processed, stamping procedure uses continuous stamping die, the lower mold of continuous stamping die is disposed with multiple stations from front to back, correspond to lower mold on the upper mold of continuous stamping die and be respectively arranged with and corresponding with the station on lower mold rushes block, correcting positioning pin is additionally provided on the upper mold of continuous stamping die, billot goes out upper mold correcting location hole in the first station stamping first after servo is sent into, then billot is sent into and passes through correcting positioning pin and the positioning of upper mold correcting hole by servo and successively carries out punch process in each station respectively;The synchronous start and stop of two motors of feeding roller are controlled by PLC.

Description

A kind of automobile vertical plate upper mounting bracket continuous process and process equipment
Technical field
The present invention relates to a kind of automobile vertical plate upper mounting bracket continuous process, belong to automobile component processing technology neck Domain.The invention further relates to the process equipments using above-mentioned continuous process.
Background technique
Automobile vertical plate upper mounting bracket is a component on automobile, is divided into left and right part.In the prior art, vapour is processed It is by the way of multistage manufacturing processes when vehicle vertical plate upper mounting bracket, processing technology includes blanking-blanking and punching-molding- Cutting-shaping, each process are the processing of single sequence, divergence between more, process that there are moulds of industrial equipment exploitations, need to increase all swivel links, The defects of unstable quality, low production efficiency.
Summary of the invention
In view of the above defects of the prior art, the present invention provides one kind can carry out Continuous maching, quality it is stable, The automobile vertical plate upper mounting bracket continuous process that work efficiency is high, processing cost is low.
The present invention is achieved by the following technical solution: a kind of automobile vertical plate upper mounting bracket Continuous maching side Method, it is characterized in that: plate coiled strip first by open flat machine carry out out it is flat, open it is flat after plate passed through under the traction of smoothing feeder It crosses smoothing feeder to be smoothed, and the billot after smoothing is sent into stamping procedure and is processed, the mold that stamping procedure uses For continuous stamping die, the upper surface of the lower mold of the continuous stamping die is plane, the lower die of the continuous stamping die Tool is disposed with multiple stations from front to back, corresponds to lower mold on the upper mold of the continuous stamping die and is respectively arranged with It is corresponding with the station on lower mold to rush block, correcting positioning pin, billot are additionally provided on the upper mold of the continuous stamping die Go out upper mold correcting location hole in the first station stamping first after servo is sent into, then billot is sent into and passes through by servo and leads Positive positioning pin and the positioning of upper mold correcting hole successively carry out punch process in each station respectively, finally form and cut off separation;Smoothing The feeding roller of feeder controls the synchronous start and stop of two motors by PLC, and while smoothing the feeding roller stopping of feeder, setting exists The hold-down mechanism of stamping procedure front simultaneously compresses plate, while smoothing the electric motor starting of feeder, the hold-down mechanism Plate is unclamped simultaneously.
Further, the positioning end of the correcting positioning pin is taper.The positioning end of correcting positioning pin uses conical design It can guarantee that correcting positioning pin can be easily inserted into upper mold correcting location hole and workpiece is accurately positioned, guarantee workpiece Position in a mold is accurate.
Further, the lower mold of the continuous stamping die is set gradually from front to back there are six station, first the One station stamping goes out five upper mold correcting location holes, and then step pitch is sent into 130.5mm to second station, is positioned by upper mold correcting Right member front and rear side trimming is cut away leftover pieces according to the developed curve of workpiece by hole positioning, then step pitch is sent into 130.5mm to third Station cuts away leftover pieces, completes the sharp processing of left and right part, then again according to the developed curve of workpiece by left member front and rear side trimming Step pitch is sent into 130.5mm and completes left and right part flange molding procedure according to trim lines to the 4th station, then step pitch is sent into 130.5mm To the 5th station, workpiece negative angle is completed into the whole process in side, reaches product size requirement, finally step pitch is sent into 130.5mm to the again Six stations, left and right part is cut off and is separated, and product is separated.
The present invention also provides a kind of automobile vertical plate upper mounting bracket continuous processing equipment, the technical solution used It is: opens flat machine, smoothing feed device, stamping equipment including what is set gradually, the smoothing feed device includes levelling machine and sets The feeding mechanism at levelling machine rear portion is set, the feeding mechanism includes feeding roller, the pressing device that feeding roller rear portion is arranged in, institute Stating feeding roller includes upper roller and lower roll setting up and down, and the both ends of the upper roller and lower roll are provided with gear and the biography that is meshed It is dynamic, the gear that motor and speed reducer drives the end is respectively arranged at the both ends of the feeding roller;The mold of the stamping equipment For continuous stamping die, the upper surface of the lower mold of the stamping equipment is plane, is arranged on the lower mold along feed direction There are multiple continuous punching stations, the stamping station corresponded on the lower mold on the upper mold of the stamping equipment is set gradually Have it is multiple rush block, correcting positioning pin is additionally provided on the upper mold;The motor and pressing device for driving feeding roller pass through PLC It is controlled.
Further, the pressing device includes electric cylinder push rod and the branch for being correspondingly arranged at electric cylinder push rod lower part Frame has gap between the bracket and electric cylinder push rod lower end.
Further, the photoelectric sensor of stamping equipment jig frequency for identification is provided in the side of the stamping equipment, Signal of the PLC signal as the electric motor starting of feeding roller is fed back to by photoelectric sensor.
Further, for convenient for carrying out correcting positioning to workpiece, the positioning end of the correcting positioning pin is taper.
Further, stamping station there are six being set gradually from front to back on the lower mold of the stamping equipment, the first work Position is punching station, and second station and 3rd station are trimming station, and the 4th station is flange station, and the 5th station is shaping work Position, the 6th station are cutting station.Upper mold correcting location hole, the trimming of workpiece front and rear side, work can be sequentially completed by six stations Part flange forms, workpiece negative angle side is whole, cutting workpiece separation.
The beneficial effects of the present invention are: the present invention can be realized the multi-process continuous punching of workpiece and efficiently form, it can Processing efficiency is greatly improved, and processing quality is stablized;Process equipment in the present invention by using special designing smoothing feeding The continuous stamping die of device and special designing is greatly improved processing effect so that the continuous punching of workpiece is processed into possibility Rate;Multistation Continuous maching can be carried out by using continuous stamping die, number of molds is few, and mould volume is small, reduces tooling The exploitation of mold;By can guarantee that plate is reliably sent into and guarantees using PLC linkage control to feeding roller motor and pressing device The stability of plate when stamping equipment punching press;And the present invention, due to using multistation Continuous maching, operation simplifies, operator 1 people can be reduced to by 4 original people to operate, greatly saved recruitment cost, and be continuously connected between process, eliminated all changes Section, greatly improves work efficiency, and ensure that quality conformance, operating safety factor also greatly improves.
Detailed description of the invention
Fig. 1 is the process flow diagram in the specific embodiment of the invention;
Fig. 2 is the main view of the right automobile vertical plate upper mounting bracket in the present invention;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the left view of Fig. 2;
Fig. 5 is the right view of Fig. 2;
Fig. 6 is the bottom view of Fig. 2;
Fig. 7 is the expanded view of the right automobile vertical plate upper mounting bracket in the present invention;
Fig. 8 is the main view of the left automobile vertical plate upper mounting bracket in the present invention;
Fig. 9 is the expanded view of the left automobile vertical plate upper mounting bracket in the present invention;
Figure 10 is the structural schematic diagram of the automobile vertical plate upper mounting bracket continuous processing equipment in the present invention;
Figure 11 is the structural schematic diagram of the feeding roller in Figure 10;
Figure 12 is the working principle diagram of the smoothing feed device in Figure 10;
Figure 13 is the structural schematic diagram of the mold of stamping equipment in the present invention;
Figure 14 is the top view of the lower mold of stamping equipment in the present invention;
Figure 15 is the structural schematic diagram of correcting positioning pin in the present invention;
In figure, 1 is out flat machine, and 2 be smoothing feed device, and 3 be stamping equipment, and 4 be product hopper, and 5 be front jocket wheel, and 6 are Smoothing wheel, 7 be feeding roller, and 701 be upper roller, and 702 be lower roll, and 703,704 be motor, and 705,706 be speed reducer, 707,708, 709,710 be gear, and 711,712 be support, and 8 be electric cylinder push rod, and 9 be bracket, and 10 be photoelectric sensor, and 11 be the first work Position 12 is second station, 13 is 3rd station, and 14 be the 4th station, and 15 be the 5th station, and 16 be the 6th station, and 17 be upper mold Correcting location hole, 18 be lower die location hole, 19, rush block, 20, conveying device.
Specific embodiment
Below by non-limiting embodiment and in conjunction with attached drawing, the present invention is further illustrated:
As shown in the picture, a kind of automobile vertical plate upper mounting bracket continuous processing equipment comprising opening for setting gradually is flat Machine 1, smoothing feed device 2, stamping equipment 3.It is described open flat machine 1 be the prior art, be mainly used for carrying out out plate coiled strip it is flat, Details are not described herein for specific structure.The smoothing feed device includes levelling machine and the feeding mechanism that levelling machine rear portion is arranged in, The levelling machine is the prior art, and main includes that fore multiple front jocket wheels 5 are arranged, the several of 5 rear portion of front jocket wheel are arranged in A smoothing wheel 6 arranged up and down, front jocket wheel 5 is mainly used for being oriented to plate and being supported, and smoothing wheel 6 is for carrying out plate Smoothing.The feeding mechanism includes feeding roller 7, the pressing device that 7 rear portion of feeding roller is arranged in.The feeding roller 7 includes up and down The upper roller 701 and lower roll 702 of setting, the both ends of upper roller 701 are respectively arranged with gear 709 and gear 710, the both ends of lower roll 702 It is respectively arranged with gear 707 and gear 708, gear 709 and gear 707 are meshed, and gear 710 and gear 708 are meshed, in institute The both ends for stating feeding roller are respectively arranged with motor 703, motor 704 and speed reducer 705, speed reducer 706 drives the gear at the end to pass It is dynamic.In the present embodiment, the pressing device includes electric cylinder push rod 8 and the branch for being correspondingly arranged at 8 lower part of electric cylinder push rod Frame 9 has gap between 8 lower end of bracket 9 and electric cylinder push rod.The mold of the stamping equipment is continuous stamping die, described The upper surface of the lower mold of stamping equipment is plane, and feed direction is provided with multiple continuous punching stations on the lower mold, There is mold groove in the stamping station of lower mold, the punching press on the lower mold is corresponded on the upper mold of the stamping equipment Station be disposed with it is multiple rush block 19 accordingly, correcting positioning pin, preferably correcting positioning pin are additionally provided on the upper mold Positioning end be taper, as shown in figure 15.In the present embodiment, it is disposed with from front to back on the lower mold of the stamping equipment Six stamping stations, the first station 11 are punching station, and second station 12 and 3rd station 13 are trimming station, the 4th station 14 For flange station, the 5th station 15 is shaping station, and the 6th station 16 is cutting station.Drive the motor and electric cylinder of feeding roller Push rod 8 is controlled by PLC.The side of stamping equipment is provided with the photoelectric sensor of stamping equipment jig frequency for identification 10。
The processing method of above-mentioned automobile vertical plate upper mounting bracket continuous processing equipment is: plate coiled strip is flat by opening first Machine 1 carry out out it is flat, open it is flat after plate smoothed under the traction of smoothing feed device 2 by levelling machine, and will be after smoothing Billot be conveyed into stamping equipment 3 by the clamping of feeding roller 7 and processed, billot is after servo is sent into first in the first station Stamp out upper mold correcting location hole, then billot is sent into and passes through correcting positioning pin and the positioning of upper mold correcting hole successively by servo Punch process is carried out in each station respectively, finally forms and cuts off separation.
The feeding roller 6 for smoothing feed device controls the synchronous start and stop of two motors by PLC.Size of the PLC according to stepping, meter The time that the time and reversion for calculating the motor operation for setting feeding roller 7 stop, while beat will be taken into account and be arranged in stamping equipment The photoelectric sensor 10 of side after one jig frequency of stamping equipment, after photoelectric sensor 10 identifies, feeds back to PLC signal, feeding roller 7 electric motor starting executes photoelectric sensor identification information and holds if program command conflicts with 10 identification information of photoelectric sensor Every trade into order.
After the completion of one jig frequency of stamping equipment, for guarantee stamping equipment plate stability, in the upper roller of feeding roller While stopping with lower roll, under the order of PLC, fast travel moves down electric cylinder push rod 8, passes through the common work with bracket 9 With compression plate.While the motor of feeding roller obtains signal enabling, electric cylinder push rod 8 is moved up, and only plays limit.
In the present embodiment, the course of work of stamping equipment is: it is fixed to stamp out five upper mold correctings in the first station 11 first Position hole 17, then step pitch is sent into 130.5mm to second station 12, is positioned, is pressed by correcting positioning pin and upper mold correcting location hole Leftover pieces are cut away into right member front and rear side trimming according to the developed curve of workpiece, then step pitch is sent into 130.5mm to 3rd station 13, presses According to workpiece developed curve by left member front and rear side trimming, cut away leftover pieces, complete the sharp processing of left and right part, then step pitch is sent into again 130.5mm completes left and right part flange molding procedure according to trim lines to the 4th station 14, then step pitch is sent into 130.5mm to the 5th Workpiece negative angle is completed the whole process in side by station 15, reaches product size requirement, and finally step pitch is sent into 130.5mm to the 6th work again Left and right part is cut off and is separated by position 16, and product is separated, and after stepping in synchronization, middle process waste material is directly shredded with die cutter.Entirely Process completes the processing of product finished product by six stations.
The present invention is flat from opening, primary to complete to the continuous punch forming of six sequences to smoothing feeding, substantially increases work Efficiency, and ensure that quality conformance, operating safety factor greatly improves.
Other parts in the present embodiment are the prior art, and details are not described herein.

Claims (8)

1. a kind of automobile vertical plate upper mounting bracket continuous process, it is characterized in that: plate coiled strip first by open flat machine into Row open it is flat, open it is flat after plate smoothed under the traction of smoothing feeder by smoothing feeder, and by the item after smoothing Material is sent into stamping procedure and is processed, and the mold that stamping procedure uses is continuous stamping die, under the continuous stamping die The upper surface of mold is plane, and the lower mold of the continuous stamping die is disposed with multiple stations, the company from front to back Correspond on the upper mold of continuous stamping die lower mold be respectively arranged with it is corresponding with the station on lower mold rush block, it is described continuous Correcting positioning pin is additionally provided on the upper mold of stamping die, billot is after servo is sent into first on the first station stamping goes out Mould correcting location hole, then billot is sent into and passes through correcting positioning pin and the positioning of upper mold correcting hole successively respectively each by servo Station carries out punch process, finally forms and cuts off separation;The feeding roller for smoothing feeder controls two motors by PLC and synchronizes Start and stop are arranged in the hold-down mechanism of stamping procedure front while compressing plate while smoothing the feeding roller stopping of feeder, While smoothing the electric motor starting of feeder, the hold-down mechanism unclamps plate simultaneously.
2. automobile vertical plate upper mounting bracket continuous process according to claim 1, it is characterized in that: the correcting is fixed The positioning end of position pin is taper.
3. automobile vertical plate upper mounting bracket continuous process according to claim 1 or 2, it is characterized in that: the company The lower mold of continuous stamping die sets gradually that there are six stations from front to back, goes out five upper mold correctings in the first station stamping first Location hole, then step pitch is sent into 130.5mm to second station, is positioned by upper mold correcting location hole, according to the expansion song of workpiece Right member front and rear side trimming is cut away leftover pieces by line, then step pitch is sent into 130.5mm to 3rd station, according to the developed curve of workpiece By left member front and rear side trimming, leftover pieces are cut away, complete the sharp processing of left and right part, then step pitch is sent into 130.5mm to the 4th work again Left and right part flange molding procedure is completed according to trim lines in position, then step pitch feeding 130.5mm is to the 5th station, and workpiece negative angle is complete At the whole process in side, reach product size requirement, finally step pitch is sent into 130.5mm to the 6th station again, and left and right part is cut off and is separated, Product separates.
4. a kind of automobile using automobile vertical plate upper mounting bracket continuous process a method according to any one of claims 1-3 is vertical Plate upper mounting bracket continuous processing equipment, it is characterized in that: include set gradually open flat machine, smoothing feed device, punching press are set Standby, the smoothing feed device includes levelling machine and the feeding mechanism that levelling machine rear portion is arranged in, and the feeding mechanism includes sending Material roller is arranged in the pressing device at feeding roller rear portion, and the feeding roller includes upper roller and lower roll setting up and down, the upper roller and The both ends of lower roll are provided with gear and the transmission that is meshed, and are respectively arranged with motor and speed reducer at the both ends of the feeding roller and drive Move the gear at the end;The mold of the stamping equipment is continuous stamping die, and the upper surface of the lower mold of the stamping equipment is Plane is provided with multiple continuous punching stations along feed direction on the lower mold, corresponding on the upper mold of the stamping equipment In the stamping station on the lower mold be disposed with it is multiple rush block, correcting positioning pin is additionally provided on the upper mold;It drives The motor and pressing device of dynamic feeding roller pass through PLC and are controlled.
5. automobile vertical plate upper mounting bracket continuous processing equipment according to claim 4, it is characterized in that: the compression fills It sets including electric cylinder push rod and the bracket for being correspondingly arranged at electric cylinder push rod lower part, the bracket and electric cylinder push rod lower end Between have gap.
6. automobile vertical plate upper mounting bracket continuous processing equipment according to claim 5, it is characterized in that: in the punching press The side of equipment is provided with the photoelectric sensor of stamping equipment jig frequency for identification, feeds back to PLC signal by photoelectric sensor The signal of electric motor starting as feeding roller.
7. automobile vertical plate upper mounting bracket continuous processing equipment according to claim 4, it is characterized in that: the correcting is fixed The positioning end of position pin is taper.
8. automobile vertical plate upper mounting bracket continuous processing equipment according to claim 4, it is characterized in that: the punching press is set It is set gradually from front to back on standby lower mold there are six stamping station, the first station is punching station, second station and third Station is trimming station, and the 4th station is flange station, and the 5th station is shaping station, and the 6th station is cutting station.
CN201811539732.2A 2018-12-17 2018-12-17 A kind of automobile vertical plate upper mounting bracket continuous process and process equipment Pending CN109433916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811539732.2A CN109433916A (en) 2018-12-17 2018-12-17 A kind of automobile vertical plate upper mounting bracket continuous process and process equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811539732.2A CN109433916A (en) 2018-12-17 2018-12-17 A kind of automobile vertical plate upper mounting bracket continuous process and process equipment

Publications (1)

Publication Number Publication Date
CN109433916A true CN109433916A (en) 2019-03-08

Family

ID=65559740

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811539732.2A Pending CN109433916A (en) 2018-12-17 2018-12-17 A kind of automobile vertical plate upper mounting bracket continuous process and process equipment

Country Status (1)

Country Link
CN (1) CN109433916A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110434194A (en) * 2019-08-06 2019-11-12 天石(深圳)技研有限公司 One Seed packaged band feed apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110434194A (en) * 2019-08-06 2019-11-12 天石(深圳)技研有限公司 One Seed packaged band feed apparatus

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